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Proc::collect() better cpu percent accurazy

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aristocratos 2021-10-07 13:20:30 +02:00
parent 84d0596294
commit 6a3c5d9b97
1 changed files with 13 additions and 9 deletions
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22
src/osx/btop_collect.cpp
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@ -1029,22 +1029,26 @@ namespace Proc {
found.push_back(pid);
//? Check if pid already exists in current_procs
bool no_cache = false;
auto find_old = rng::find(current_procs, pid, &proc_info::pid);
if (find_old == current_procs.end()) {
current_procs.push_back({pid});
find_old = current_procs.end() - 1;
no_cache = true;
}
SRUN;
auto &new_proc = *find_old;
//? Get program name, command, username, parent pid, nice and status
char fullname[PROC_PIDPATHINFO_MAXSIZE];
proc_pidpath(pid, fullname, sizeof(fullname));
new_proc.cmd = std::string(fullname);
size_t lastSlash = new_proc.cmd.find_last_of('/');
new_proc.name = new_proc.cmd.substr(lastSlash + 1);
new_proc.ppid = kproc.kp_eproc.e_ppid;
if (no_cache) {
char fullname[PROC_PIDPATHINFO_MAXSIZE];
proc_pidpath(pid, fullname, sizeof(fullname));
new_proc.cmd = std::string(fullname);
size_t lastSlash = new_proc.cmd.find_last_of('/');
new_proc.name = new_proc.cmd.substr(lastSlash + 1);
new_proc.ppid = kproc.kp_eproc.e_ppid;
}
new_proc.p_nice = kproc.kp_proc.p_nice;
new_proc.state = kproc.kp_proc.p_stat;
@ -1053,16 +1057,16 @@ namespace Proc {
if (sizeof(pti) == proc_pidinfo(new_proc.pid, PROC_PIDTASKINFO, 0, &pti, sizeof(pti))) {
new_proc.threads = pti.pti_threadnum;
new_proc.mem = pti.pti_resident_size;
cpu_t = (pti.pti_total_user + pti.pti_total_system) / 1'000'000;
cpu_t = (pti.pti_total_user + pti.pti_total_system) / 1'000;
if (new_proc.cpu_t == 0) new_proc.cpu_t = cpu_t;
new_proc.cpu_s = pti.pti_total_system / 1'000'000;
new_proc.cpu_s = pti.pti_total_system / 1'000;
new_proc.cpu_c = (double)new_proc.cpu_t / max(1.0, uptime - new_proc.cpu_s);
}
struct passwd *pwd = getpwuid(kproc.kp_eproc.e_ucred.cr_uid);
new_proc.user = pwd->pw_name;
//? Process cpu usage since last update
new_proc.cpu_p = clamp(round(cmult * 1000 * (cpu_t - new_proc.cpu_t) / max((uint64_t)1, cputimes - old_cputimes)) / 10.0, 0.0, 100.0 * Shared::coreCount);
new_proc.cpu_p = clamp(round(cmult * (cpu_t - new_proc.cpu_t) / max((uint64_t)1, cputimes - old_cputimes)) / 10.0, 0.0, 100.0 * Shared::coreCount);
//? Process cumulative cpu usage since process start
new_proc.cpu_c = (double)cpu_t / max(1.0, uptime - new_proc.cpu_s);